CN104802138B - Power tool - Google Patents

Abstract

The invention provides a power tool comprising a housing, a motor contained inside the housing, and an output rod driven by the motor through a transformation mechanism. The transmission mechanism comprises a motion transformation mechanism. The motion transformation mechanism operably drives the output rod to work in a first motion mode outputting reciprocating motions and to work in a second motion mode outputting rotation motions. The output rod extends longitudinally and is of a central line. The power tool further comprises a supporting element having a supporting surface. The supporting element is movably connected with the housing and is able to move between a first position and a second position. In the first position, the supporting surface presses against a workpiece; and in the second position, the supporting face does not press against the workpiece. The position of the supporting element can be adjusted by the operator as need, accordingly meeting different requirements of the power tool to press against the workpiece under different working conditions, thereby providing great convenience to the use of the power tool.

Description

Power tool

Technical field

The present invention relates to a kind of power tool, particularly relate to a kind of multiduty power tool.

Background technology

Conventional power tool includes the power tool of outfan output rotary motion, such as electric drill, screwdriver etc.；And The power tool of outfan output reciprocating motion, such as reciprocating sow, sweep-saw etc..

Existing power tool is typically only capable to make outfan output one motion, as electric drill is only capable of exporting rotary motion；Past Multiple saw is only capable of output reciprocating motion；But, operator completes a certain work, during such as decorating house, generally require use multiple Different power tools, individually buys these different power tools and can add the burden of heavy user.

To this end, prior art occurs in that the different power tool adapters range with extension power tool, as The reciprocal adapter provided for electric drill, this transducer need not motor, it is only necessary to comprises a set of reciprocator, this adapter Input is connected with the drill bit of electric drill, and the rotary motion that drill bit inputs is converted to the reciprocal fortune of outfan output by reciprocator Dynamic, thus consumer only needs the reciprocal adapter buying an electric drill and a lower price to be i.e. equivalent to have purchased an electric drill With a reciprocating sow, this alleviates the burden of consumer.

This power tool adds the combination of adapter, although reduces cost thus alleviates the burden of consumer, but by Drive by the outfan of power tool in transducer, the motor of the outfan of transducer distance power tool farther out, and operator It is difficult to control power tool and transducer, the output of the adapter of the most this combination often less stable simultaneously.

For solving the problems referred to above, the applicant have submitted application number on February 6th, 2013 to China national Department of Intellectual Property Being the application for a patent for invention of 201310047997.1, this patent application provides a kind of novel power tool, this power tool The motor including housing, being contained in housing, the take-off lever driven by drive mechanism by motor, drive mechanism includes that motion becomes Converting mechanism, motion changing mechanism exercisable driving take-off lever is in the first motor pattern and the output rotation of output reciprocating motion Second motor pattern of motion.Due to the exportable rotation of the take-off lever of this power tool and reciprocal two kinds of motor patterns, thus greatly Widen greatly the range of power tool, and this power tool has been to be realized by a sets of transmission mechanism same defeated by motor Rod output rotates and reciprocal two kinds of motor patterns, thus the exportable stable rotation of take-off lever or reciprocating motion, convenient operation.

But above-mentioned application merely provides the multipurpose tool main body on a kind of basis, do not consider that this power tool is in not temporarily With different demands during operating mode, such as, under some operating mode, this power tool need extra supporter against workpiece, to carry High working (machining) efficiency and processing stability；Under other operating modes, this power tool generally should not occur any affect work head Obstruction towards workpiece feeding.Therefore, under above-mentioned novel power tool can not meet different operating mode to workpiece against difference Demand, the processing to workpiece is the most convenient.

Summary of the invention

For overcoming the defect of prior art, problem to be solved by this invention is to provide a kind of convenient multipurpose used and moves Power instrument, this power tool can meet under different operating mode to workpiece against different demands.

For solving the problems referred to above, the technical scheme is that

A kind of power tool, the motor including housing, being contained in described housing, is driven by drive mechanism by described motor Dynamic take-off lever, described drive mechanism includes motion changing mechanism, the described output of the exercisable driving of described motion changing mechanism Bar is in the first motor pattern and second motor pattern of output rotary motion of output reciprocating motion, and described take-off lever lengthwise prolongs Stretching and have centrage, described power tool also includes the support member with supporting surface, and what described support member was movable is connected to institute State on housing and can move between the first position and the second position, in described primary importance, described supporting surface and workpiece against, In the described second position, described supporting surface not with workpiece against.

Preferably, when described take-off lever is in described first motor pattern, described support member is positioned at described primary importance.

Preferably, described take-off lever is in described second motor pattern and described power tool reaches particular process state Time, described support member is positioned at described primary importance.

Preferably, when described take-off lever is in described second motor pattern, described support member is positioned at the described second position.

Preferably, described power tool also includes the biasing device exerting a force described support member, and described biasing device makes institute State supporting surface and there is the bearing of trend along described centrage towards the trend moved away from the direction of described housing, at described take-off lever When described second motor pattern, in described primary importance is the predetermined stroke range of the most described housing motion of described support member All positions.

Preferably, described support member linearly moves relative to described housing.

Preferably, described linearly moving direction is the bearing of trend of described centrage.

Preferably, described power tool also includes movable connection handle on the housing, and described handle is with described Support member interlocks.

Preferably, described handle is wholely set with described support member.

Preferably, the most described housing into rotation of described support member.

Preferably, described housing is provided with switching part, and described support member rotates relative to described switching part around first axle, institute State described first axle and be perpendicular to described centrage.

Preferably, described switching part is around the second the most described housing into rotation of axis, and described second axis is perpendicular to described One axis.

Preferably, described second axis intersects with described first axle.

Preferably, state support member linearly to move while described housing into rotation.

Preferably, in described support member and described housing is provided with the spiral shell that the direction along described centrage extends It is provided with, on another in rotation cam path, described support member and described housing, the projectile connected with described cam path.

Preferably, described linearly moving direction is the bearing of trend of described centrage.

Preferably, described support member is when described primary importance, and described supporting surface is perpendicular to described centrage.

Preferably, described power tool also includes the handle being flexibly connected with described housing, described support member and described hands Handle interlocks.

Preferably, being provided with position holding mechanism between described support member and described housing, described position holding mechanism will The most described housing of described support member is maintained at predeterminated position.

Preferably, described position holding mechanism includes the locking being arranged on in described support member and described housing Part, be arranged in described support member and described housing another on mating part, described locking piece can be in latched position and release Moving between position, in latched position, described locking piece connects with described mating part, and described support member is maintained at described default position Put；In off-position, described locking piece disengages with described mating part, and described support member can housing activity relatively.

Preferably, described position holding mechanism also includes the bias piece compressed with described locking piece, and described bias piece is to institute Stating locking piece force makes described locking piece have the trend connected with described mating part.

Preferably, being provided with middleware between described bias piece and described locking piece, described bias piece promotes in the first direction Described middleware moves, and described middleware promotes described locking piece towards described locking along the second direction vertical with first direction Move in position.

Preferably, described first direction is the bearing of trend of described centrage.

Preferably, described middleware is provided with and pushes against the lock face of described locking piece and described lock in described latched position Determining face and be at an angle of the receiving slit that the inclined-plane of setting is connected with described inclined-plane, described inclined-plane is along described first direction movement progress institute Stating locking piece in the generation displacement of described second direction thus to move towards described latched position, described receiving slit is in described release position Put the described locking piece of collecting.

Preferably, described locking piece is steel ball.

Preferably, described power tool is installed with spacer, described spacer is located at for described steel ball along described the The through hole that two directions pass.

Preferably, described locking piece rotates around described centrage.

Preferably, described locking piece includes that the first sticking department and second that the most described centrage centrosymmetry is arranged locks Portion, described first sticking department and described second sticking department jointly act on and described support member are maintained at described predeterminated position.

Preferably, described locking piece moves along the direction being perpendicular to described centrage.

Preferably, described support member also includes the first sidepiece and the second sidepiece being arranged on described supporting surface both sides, described Forming receiving space between the first sidepiece, the second sidepiece and described supporting surface, described support member is described defeated when described primary importance The end of rod is positioned at described receiving space；Described power tool also includes grafting battery bag on the housing, described Support member is when the described second position, and described battery bag is positioned at described receiving space.

Preferably, described power tool also includes the handle being connected with described housing, and described support member also includes with described The extension that supporting surface is connected, described support member is when described primary importance, and described extension is held by formed relative with described handle Hold space.

Compared with prior art, the power tool of the present invention includes the support member with supporting surface, the company that support member is movable Be connected on housing and can move between the first position and the second position, in primary importance, supporting surface can with workpiece against, Two positions, supporting surface not with workpiece against, operator can adjust the position of support member as required, thus meets power tool Under different operating modes to workpiece against different demands, greatly facilitate the use of power tool.

Accompanying drawing explanation

The invention will be further described with embodiment below in conjunction with the accompanying drawings.

Fig. 1 is the axonometric chart of the power tool that first embodiment of the invention provides；

Fig. 2 is the front view of power tool shown in Fig. 1, and now, support member is positioned at primary importance；

Fig. 3 is another front view of power tool shown in Fig. 1, and now, support member is positioned at the second position；

Fig. 4 is the profile of the position holding mechanism in the power tool shown in Fig. 1, and now, locking piece is positioned at locking bit Put；

Fig. 5 is the profile of the position holding mechanism in the power tool shown in Fig. 1, and now, locking piece is positioned at release position Put；

Fig. 6 is the front view of the power tool that second embodiment of the invention provides；

Fig. 7 is the part section front view of the power tool that third embodiment of the invention provides, and now, support member is positioned at Primary importance, and the locking piece of position holding mechanism is positioned at latched position；

Fig. 8 is another part section front view of the power tool shown in Fig. 7, and now, support member is positioned at the second position, and The locking piece of position holding mechanism is positioned at off-position；

Fig. 9 is another part section front view of the power tool shown in Fig. 7, and now, support member is positioned at the second position, and The locking piece of position holding mechanism is positioned at latched position；

Figure 10 is the part section front view of the power tool that four embodiment of the invention provides, now, support member position In primary importance；

Figure 11 is another part section front view of the power tool shown in Figure 10, and now, support member is positioned at the second position；

Figure 12 is the sectional view along J-J direction of the power tool shown in Figure 11, now, and the locking piece position of position holding mechanism In latched position；

Figure 13 is another sectional view along J-J direction of the power tool shown in Figure 11, now, the locking of position holding mechanism Part is positioned at off-position；

Figure 14 is the part section front view of the power tool that fifth embodiment of the invention provides, now, support member position In primary importance；

Figure 15 is the part section front view of the power tool shown in Figure 14, and now, support member is positioned at the second position；

Figure 16 is the part section front view of the power tool shown in Figure 14, and now, support member is positioned at another second position；

Figure 17 is the partial sectional view along K-K direction of the power tool shown in Figure 16；

Figure 18 is the part section front view of the power tool that sixth embodiment of the invention provides, now, support member position In primary importance；

Figure 19 and Figure 20 is two part section front views of the power tool shown in Figure 18, it is shown that support member is towards The pilot process of two position motions；

Figure 21 is another part section front view of the power tool shown in Figure 18, and now, support member is positioned at the second position；

Figure 22 is the partial sectional view along M-M direction of the power tool shown in Figure 21.

Wherein,

2 housing 52 operating parts 322 supporting surfaces

3 switch 300 power tool 323 first chutes

6 take-off lever 320 support member 324 second chutes

325 first guide 625 guide part 820 support members

326 second guide 628 bias piece 822 supporting surfaces

327 bar shaped main body 630 locking piece 807 handles

328 bias piece 631 middleware 860 gripping space

329 hole 876, fin 633 first location cam paths

330 hole 878, locking piece 635 second location projectiles

332 protuberance 647 operating knob 880 first service portions

333 first hole 653, location stopper slot 882 second service portions

335 second hole 662, location protruded stigma 884 first bars

337 the 3rd hole 664, location lock face 886 second bars

338 first sticking department 666 inclined-plane 888 the 3rd bars

339 the 4th hole 668, location receiving slit 890 spring bearer plates

340 second sticking department 670 spacer 892 pivots

342 lock body 672 projection 894 elastic bumps

346 arcuate groove 674 longitudinal trough 896 pits

347 operating knob 700 power tool 900 power tools

348 first perforate 720 support member 920 support members

349 second perforate 722 supporting surface 922 supporting surfaces

350 first sidepiece 728 bias piece 950 first sidepieces

352 second sidepiece 730 locking piece 952 second sidepieces

353 hole 907, stopper slot 733 first location handles

307 hole 956, handle 735 second location extensions

356 extension 738 sticking department 960 gripping space

360 gripping space 742 main body 994 elastic bumps

401 clamping device 747 operating knob 995 battery bags

500 power tool 707 handle 996 pits

520 support member 766 panel 997 second axis

522 supporting surface 768 wire 998 switching parts

531 elastic component 770 through hole 999 first axles

600 power tool 772 transverse holes

620 support member 800 power tools

Detailed description of the invention

Fig. 1 to Fig. 5 shows the power tool 300 of first embodiment of the invention.

Incorporated by reference to Fig. 1 and Fig. 2, the power tool 300 of present embodiment is multiduty power tool, including housing 2, receives Being dissolved in the motor in housing 2, the take-off lever 6 driven by motor by drive mechanism, drive mechanism includes motion changing mechanism, fortune Dynamic mapping device exercisable driving take-off lever 6 is in the of the first motor pattern of output reciprocating motion and output rotary motion Two motor patterns.Take-off lever 6 lengthwise extends and has centrage X-X, when power tool 300 uses, around the centrage of take-off lever 6 The motor pattern of the changeable take-off lever of operating parts 52 6 of X-X rotational motion mapping device.

Due to the exportable rotation of take-off lever 6 and reciprocal two kinds of motor patterns of this power tool 300, thus significantly widen The range of power tool, and this power tool is to be realized same take-off lever by motor by a sets of transmission mechanism to export Rotate and reciprocal two kinds of motor patterns, thus the exportable stable rotation of take-off lever or reciprocating motion, convenient operation.

Can connect clamping device 401 on take-off lever 6, clamping device 401 can clamp different types of work head, such as, both The saw blade moving back and forth cutting workpiece can be clamped, also can clamp rotary motion processing six square shank drill heads of workpiece, six side's handle screws Criticize screwdriver bit etc..When clamping saw blade on clamping device 401, take-off lever 6 is made to be in output reciprocating motion by adjusting operating parts 52 First motor pattern, now, dynamically working 300 is used as reciprocal class instrument, and after motor starting, take-off lever 6 moves back and forth and drives saw Bar moves back and forth can cut workpiece；When clamping drill bit on clamping device 401, take-off lever 6 is made to be in by adjustment operating parts 52 defeated Going out the second motor pattern of rotary motion, now, power tool 300 is used as to rotate class instrument, and after motor starting, take-off lever 6 revolves Transhipment is dynamic drives bit motion can punch on workpiece.Work head include the clamping part overlapping with clamping device 401 and with The work portion that clamping part connects, the region at place, work portion is working region.Be perpendicular to take-off lever 6 centrage X-X and with Clamping device 401 is boundary away from the plane of the distalmost end abutting of motor, and working region is this plane lateral areas away from housing 2 Territory.

Saw blade is in moving back and forth cutting workpiece fabrication, it usually needs power tool provides the supporter against workpiece, from And improve cutting efficiency and cutting stability；And drill bit is in workpiece fabrication is crept in rotary motion, unsuitable on usual power tool Occur that any possibility affect the drill bit obstruction towards workpiece feeding.

Incorporated by reference to Fig. 1 to Fig. 3, for make power tool 300 can meet under different operating mode to workpiece against different demands, this The power tool 300 of embodiment also includes the support member 320 with supporting surface 322, support member 320 activity be connected to housing On 2 and can move between the first position and the second position, in the primary importance shown in Fig. 2, supporting surface 322 and workpiece against, In the second position shown in Fig. 3, supporting surface 322 not with workpiece against.Support member 320 is when primary importance, and supporting surface 322 is positioned at Within working region；Support member 320 is when the second position, and supporting surface 322 is positioned at outside working region, and thus, support member 320 is lived Dynamic be connected on housing 2 thus supporting surface 322 is selectable be positioned at working region within or outside.

Concrete, in primary importance as shown in Figure 2, within supporting surface 322 is positioned at working region.Now, supporting surface 322 The side of housing 2 is stretched out relative to clamping device 401 away from housing 2 at take-off lever 6, can be against workpiece.Second shown in Fig. 3 Position, supporting surface 322 is positioned at outside working region, and now, the side that supporting surface 322 stretches out housing 2 at take-off lever 6 clamps relatively The processing of workpiece, near housing 2, will not be caused any obstruction by the work head being clamped on clamping device 401 by device 401.

When power tool 300 uses, when take-off lever 6 is in the first motor pattern, support member 320 can be located at as shown in Figure 2 Primary importance.This kind of situation applies in general to connect the saw blade moving back and forth cutting workpiece, now, power work on take-off lever 6 Tool 300 be used as reciprocal class cut work piece cut workpiece, supporting surface 322 be positioned at working region can always against workpiece thus improve The cutting efficiency of saw blade and cutting stability.

Take-off lever 6 is in the second motor pattern and time power tool 300 reaches specific machining state, support member 320 Can be located at primary importance as shown in Figure 2.This situation applies in general to connect rotary motion on take-off lever 6 and carries out workpiece beating The drill bit in hole, now, power tool 300 is used as to rotate class instrument, and supporting surface 322 is positioned at working region at drill bit towards workpiece Against workpiece when feeding reaches certain depth, operator can be helped to determine the drilling depth of drill bit.

Present embodiment is preferred, and take-off lever 6 lengthwise extends and have centrage X-X, and support member 320 is positioned at shown in Fig. 2 Primary importance time, supporting surface 322 is perpendicular to centrage X-X.It is arranged such, no matter is always against workpiece at supporting surface 322 In the case of, or when power tool 300 reaches the particular process degree of depth, supporting surface 322 is just against in the case of workpiece, So that supporting surface 322 farthest contacts with workpiece, facilitate the use of power tool 300.Those skilled in the art can think Arriving, when support member 320 is positioned at primary importance, supporting surface 322 becomes other angle with centrage X-X, such as 30 degree, 45 degree, 60 degree of folders Angles etc. also can be against workpiece, and all employings technical scheme similar with present embodiment all should contain in protection scope of the present invention In.

Take-off lever 6 is in the second motor pattern, when support member 320 can be located at the second position as shown in Figure 3.Now, prop up The work head being arranged on clamping device 401 outside support face 322 is positioned at working region is positioned on front side of supporting surface 322, support member 320 will not hinder the workpiece head processing to workpiece.This situation applies in general to connect rotary motion on take-off lever 6 and enters workpiece The drill bit of row punching, now, power tool 300 is used as to rotate class instrument, is received in shell outside supporting surface 322 is positioned at working region In the range of body 2, drill bit will not be hindered completely to creep into workpiece and the volume of power tool 300 will not be significantly increased.

Incorporated by reference to Fig. 2 and Fig. 3, in present embodiment, support member 320 is directly flexibly connected with housing 2, it is preferred that support Part 320 linearly moves relative to housing 2, thus support member 320 the primary importance shown in Fig. 2 and the second position shown in Fig. 3 it Between move.Present embodiment is preferred, housing 2 arranges chute, support member 320 arranges guide, and guide is in housing 2 Slip makes support member 320 linearly move relative to housing 2.

Concrete, incorporated by reference to Fig. 1 and Fig. 4, housing 2 is provided with the first chute 323 and the second chute 324, the first chute 323 It is symmetrical arranged with the second relative take-off lever 6 centrage X-X of chute 324 and shape is identical.Support member 320 is provided with respectively with first The first guide 325 and the second guide 326 that the slip of chute the 323, second chute 324 connects, the first guide 325 and second The relative take-off lever 6 centrage X-X of guide 326 is symmetrical arranged and shape is identical.Second guide 326 and the second chute 324 Docked mode is identical with the docked mode of the first guide 325 and the first chute 323, below with the first guide 325 and first It is described as a example by chute 323.

In present embodiment, the first chute 323 is in horizontally set "convex" shaped on cross section, and the first guide 325 is bar Part extension, including bar shaped main body 327 and the fin 329 that extends from bar shaped main body 327 both sides, bar shaped main body 327 and " convex " The top half of font the first chute 323 coordinates, and the two ends of fin 329 and the latter half of "convex" shaped the first chute 323 are joined Close, thus, the slip that the first guide 325 is reliable and stable in the first chute 323, thus the linear of support member 320 is moved Guide.

In present embodiment, housing 2 arranges chute, support member 320 arranges guide.Those skilled in the art are permissible Expect, guide also can be set on housing 2 and arrange on support member 320 and slide the chute connected with guide, equally may be used So that support member 320 linearly moves relative to housing 2.

In present embodiment, support member 320 arranges two guides, correspondence, housing 2 arranges two gathering sills, Stable linearly the moving relative to housing 2 of support member 320 can be made.It may occur to persons skilled in the art that, a guiding is only set Part and a gathering sill connect and also may be used.

Those skilled in the art, it is further envisioned that guide takes other form, the most only arrange a strip main body, Or connect with chute with ball, roller shape guide, equally make support member 320 linearly move relative to housing 2.

In present embodiment, support member 320 linearly moves relative to housing 2 at housing 2 outer surface, can be that operator provides Good visual interface, it may occur to persons skilled in the art that, support member 320 linearly moves the most not relative to housing 2 in housing 2 Affect using effect.All of these, repeating the most one by one, all employings technical scheme similar with present embodiment all should contain In protection scope of the present invention.

Referring to Fig. 2 and Fig. 3, in present embodiment, the relative linearly moving direction of housing 2 of support member 320 is take-off lever 6 The bearing of trend of centrage X-X.Owing to take-off lever 6 lengthwise extends, for making compact conformation, housing 2 extends in the same direction with take-off lever 6 And there is certain development length, and allow support member 320 linearly move along the centrage X-X bearing of trend of take-off lever 6 relative to housing 2 Dynamic, the development length that can make full use of housing 2 is slided for support member 320 without the extra parts with certain length that arrange Dynamic, whole power tool 300 compact conformation, compact, convenient gripping and use can be made.Certainly, those skilled in the art It is contemplated that support member 320 linearly moves relative to housing 2 along other direction relative to housing 2 does not the most affect the use of support member 320 Effect.All employings technical scheme similar with present embodiment all should contain within the scope of the present invention.

Being provided with position holding mechanism between support member 320 and housing 2, position holding mechanism is by relative for support member 320 shell Body 2 is maintained at predeterminated position.

In present embodiment, predeterminated position refers to the primary importance shown in Fig. 2 and the second position shown in Fig. 3, i.e. position Relative for support member 320 housing 2 can be maintained at the primary importance shown in Fig. 2 by maintaining body, it is also possible to by relative for support member 320 Housing 2 is maintained at the second position shown in Fig. 3.

Referring to Fig. 4 and Fig. 5, position holding mechanism includes the locking piece 330 being arranged on housing 1, is arranged on support member Mating part on 320, locking piece 330 can move between latched position and off-position, in latched position, locking piece 330 with Mating part connects, and support member 320 is maintained at predeterminated position；In off-position, locking piece 330 disengages with mating part, support member 320 Can housing activity relatively.

Position holding mechanism also includes the bias piece 328 compressed with locking piece 330, and locking piece 330 is exerted a force by bias piece 328 Locking piece 330 is made to have and the trend connected with mating part of moving towards mating part.

In present embodiment, locking piece 330 rotates thus in latched position and off-position around the centrage X-X of take-off lever Between move.Concrete, locking piece 330 include lock body 342, locking piece 330 main body 342 in the form of a ring with table in housing 2 Face rotates and connects, thus moves between latched position and off-position.

Locking piece 330 also includes the first sticking department 338 prominent along the direction towards housing 2 from lock body 342 Arrange with the second sticking department 340, the first sticking department 338 and the second sticking department 340 relative take-off lever centrage X-X centrosymmetry, Wherein the first sticking department 338 and the first guide 325 connect locking the first guide 325, and the second sticking department 340 and second guides Part 326 connects locking the second guide 326, thus the first sticking department 338 and the second sticking department 340 jointly act on and being protected by support member Hold at predeterminated position, can keep support member reliably wanting on the predeterminated position of housing 2.

In present embodiment, mating part is the hole, location being available for locking piece 330 partial insertion.Concrete, in conjunction with Fig. 2 to figure 5, the first guide 325 arranging the first of the setting that keeps at a certain distance away along the bearing of trend of the centrage X-X of take-off lever 6 and determines Hole 333, position and the second hole 335, location, when the first sticking department 338 inserts the first hole 333, location, the first guide 325 is maintained at the One position；When first sticking department 338 inserts the second hole 335, location, the first guide 325 is maintained at the second position.Corresponding, the The 3rd hole, location that arranging on two guides 326 keeps at a certain distance away along the bearing of trend of the center X-X of take-off lever 6 is arranged 337 and the 4th position hole 339, and when the second sticking department 340 inserts the 3rd hole 337, location, the second guide 326 is maintained at first Putting, when the second sticking department 340 inserts the 4th hole 339, location, the second guide 326 is maintained at the second position.First hole 333, location Arrange with the 3rd hole 337, location relative take-off lever 6 centrage X-X centrosymmetry, the first sticking department 338 and the second sticking department 340 Connect with the first hole, location 333 and the 3rd hole 337, location or disengage simultaneously respectively, the second hole, location 335 and the 4th hole 339, location Take-off lever 6 centrage X-X centrosymmetry relatively is arranged, and the first sticking department 338 and the second sticking department 340 are simultaneously the most fixed with second Hole, position 335 and the 4th hole 339, location connect or disengage.Hole, each location is preferably provided on the fin 329 of support member 320, thus, Shorter sticking department i.e. can be inserted in hole, location, and certainly, hole, location is arranged on other position of support member 320 and also may be used.

Connect as it was previously stated, lock body 342 is slided with housing 2 inner surface, and support member 320 is at housing 2 outer surface Slide, for making the first sticking department 338 and the second sticking department 340 can connect with the hole, location on support member 320, refer to Fig. 4 And Fig. 5, housing 2 is respectively equipped with and is available for the first sticking department 338 and the first perforate 348 and second that the second sticking department 340 passes Perforate 349.

Referring to Fig. 4 and Fig. 5, in present embodiment, bias piece 328 is helical spring, installation helical spring for convenience, Being provided with arcuate groove 346 in housing 2, lock body 342 protrudes protuberance 332, protuberance 332 is extending at least partially into arc In shape groove 346, the slewing area of protuberance 332 and lock body 342 can be played certain position-limiting action.Helical spring is received Being dissolved in arcuate groove 346, one end and an end abutment of arcuate groove 346, the other end abuts with protuberance 332, rationally distributed, Compact conformation.

Referring to Fig. 1, Fig. 4 and Fig. 5, for convenience of operation locking piece 330, locking piece 330 is provided with behaviour in its main body 342 Making button 347, housing 2 is provided with the stopper slot 353 of arc, operating knob 347 protrudes from housing 2 appearance through stopper slot 353 Face, operating knob 347 rotates in the range of stopper slot 353 and the first sticking department 338 and the second sticking department 340 can be driven at locking bit Put and move between off-position, concrete, during an end abutment of operating knob 347 and stopper slot 353, the first sticking department 338 and second sticking department 340 be positioned at latched position；During another end abutment of operating knob 347 and stopper slot 353, the first lock Determine portion 338 and the second sticking department 340 is positioned at off-position.

The operational approach of position holding mechanism is described below.

Incorporated by reference to Fig. 4 and Fig. 5, locking piece 330 is when the latched position shown in Fig. 4, and bias piece 328 is promoted spacing by compression The end abutment of portion 332 and arcuate groove 346, the first sticking department 338 through the first perforate 348 insert the first hole, location 333 or The first relative housing 2 of guide 325 is maintained at primary importance or the second position by the second hole 335, location, correspondence, second Sticking department 340 inserts the second guide 326 phase in the 3rd hole, location 337 or the 4th hole 339, location through the second perforate 349 Housing 2 is maintained at primary importance or the second position, thus support member is maintained at primary importance or second relative to housing 2 Position.

Continuing with seeing Fig. 4 and Fig. 5, during unblock, operator overcomes the active force of bias piece 328 to rotate behaviour along unlocking direction Making button 347 thus rotate lock body 342, lock body 342 rotates and drives the first sticking department 338 and the second sticking department 340 rotate, and make the first sticking department 338 disengage with the first hole, location 333 or the second hole 335, location, also make the second locking simultaneously Portion 340 disengages with the 3rd hole, location 337 or the 4th hole 339, location, reaches unlocked position as shown in Figure 5, the first guide 325 can slide by relative housing 2 with the second guide 326, thus support member can linearly move relative to housing 2 and make supporting surface change position Put.

In present embodiment, bias piece 328 abuts with housing 2, and mating part is arranged on support member 320, this area skill Art personnel are it is contemplated that bias piece abuts with support member, and mating part is arranged on housing and does not the most affect using effect.

In present embodiment, mating part is the hole, location being available for sticking department partial insertion, and those skilled in the art can think Arrive, the mating part of other form, such as jaw, or the contact surface etc. abutted with sticking department is only set also can realize identical merit Energy.

In present embodiment, support member 320 includes two guides connected with housing 2 slip, accordingly, locking piece 330 include that one of them guide is locked on housing 2 by two sticking departments, two sticking departments respectively, and compound with regular structure, locking can Lean on, it may occur to persons skilled in the art that, a guide is only set and a sticking department also can realize identical function.

All of these, repeating the most one by one, all employings technical scheme similar with present embodiment all should contain at this In bright protection domain.

Continuing with seeing Fig. 1 to Fig. 3, support member 320 also includes the first sidepiece 350 He being arranged on supporting surface 322 both sides Second sidepiece 352, support member 320 when the primary importance shown in Fig. 2, supporting surface the 322, first sidepiece the 350, second sidepiece 352 Being enclosed the end of take-off lever 6 is located at therebetween, concrete, and supporting surface the 322, first sidepiece 350 and the second sidepiece 352 are by part output Bar 6 and clamping device 401 enclose and are located at therebetween, and the first sidepiece 350 and the second sidepiece 352 are provided with opening, thus, it is possible to for clamping Device 401 provides a certain degree of protection but does not affect operator's observation to clamping device 401 duty.Preferably, First sidepiece 350 is arranged between the first guide 325 and supporting surface 322, and the second sidepiece 352 is arranged on the second guide 326 And between supporting surface 322.First sidepiece 350 is parallel and wide with take-off lever 6 centrage X-X with the bearing of trend of the second sidepiece 352 Degree is more than the first guide and the width of the second guide.It may occur to persons skilled in the art that, guide extends directly to prop up Support face makes a part for guide become on sidepiece, or sidepiece to be not provided with the deformation such as opening, repeats the most one by one, all adopts All should contain within the scope of the present invention by the technical scheme similar with present embodiment.

Continuing with seeing Fig. 1, power tool 300 also includes the handle 307 being connected with housing 2, the bearing of trend of handle 307 Angled with housing 2 bearing of trend.In present embodiment, support member 320 also includes the extension being connected with supporting surface 322 356, handle 307 is provided with spliced eye away from one end of housing 2, and extension 356 bends and it can be inserted into away from the end of supporting surface In spliced eye.Support member 320 is when primary importance, and part supporting surface 322 is relative with handle 307 with extension 356 forms gripping Space 360.Being provided with the switch 3 controlling motor on handle 307, when power tool 300 uses, the hands of operator stretches into gripping sky Between in 360 and control to switch 3.

Referring to Fig. 1 to Fig. 3, in present embodiment, the first chute 323 and the second chute 324 are only away from supporting surface 322 One end close, at supporting surface 322 in the direction of motion of housing 2, the first guide 325 and the second guide 326 are respectively During the closing end abutment of the first chute 323 and the second chute 324, support member 320 moves to supporting surface 322 near housing 2 The second position, accurate positioning；And the first chute 323 and the second chute 324 are at the one end open near supporting surface 322, behaviour Author by operating knob 347 control locking piece be allowed to be positioned at off-position time, the first guide 325 and the second guide 326 can To slide the most finally along the direction away from housing 2 at the first chute 323 and the second chute 324 and to disengage on housing 2 respectively.By This, support member 320 can be as the adnexa of power tool, and operator can select use support member 320 or do not use support member 320, meet the different operating custom of operator.Certainly, also can arrange support member between support member 320 and power tool 320 position-limit mechanisms remaining on housing 2 and limiting the linear moving range of the relative housing of support member 320 2, the most superfluous at this State.

The operational approach of the power tool 300 of present embodiment is described below.

Incorporated by reference to Fig. 2, Fig. 4 and Fig. 5, the relative housing 2 of support member 320 of power tool 300 is maintained at primary importance, specifically , the first sticking department 338 connects through the first perforate 348 with the first hole 333, location on the first guide 325, the second locking Portion 340 connects through the second perforate 349 with the 3rd hole 337, location on the second guide 326, and support member 320 keeps reliably In primary importance.Now, supporting surface 322 is positioned at working region, and relative clamping device 401 is away from housing 2, and supporting surface 322 can Always against workpiece or when power tool 300 reaches specific working depth against workpiece.

In conjunction with Fig. 3, Fig. 4 and Fig. 5, when operator changes support member 320 position, the direction along release locking piece 330 rotates Operating knob 347 makes lock body 342 rotate, and locking piece 330 body rotation drives the first sticking department 338 and the second sticking department 340 rotate and disengage with the first hole, location 333 and the 3rd hole 337, location respectively, operator's Slidable support part 320, support member The distance that 320 relative housings 2 slide positions hole 337 along take-off lever 6 centrage X-X direction more than the first hole, location 333 and the 3rd Length after, stagger with the first sticking department 338 and the second sticking department 340 respectively in the first hole 333, location and the 3rd hole 337, location, Operator can unclamp operating knob 347, the first sticking department 338 and the second sticking department 340 under bias piece 328 acts on along locking side To rotating and riding on the fin 329 of the first guide 325 and the second guide 326 respectively, continue sliding support 320, when The relative housing 2 of support member 320 slides into the second hole 335, location of the first sticking department 338 and the first guide 325 when aliging, the One sticking department 338 automatically rotates along locking direction under the effect of bias piece 328 and snaps in the second hole, location 335, now same Time, the second sticking department 340 aligns with the 4th hole 339, location of the second guide 326 and snaps in the 4th under bias piece 328 acts on Hole 339, location, support member 320 is maintained at the second position as shown in Figure 3 reliably, and now, supporting surface 322 is deactivated district Territory, the processing of workpiece will not be caused any obstruction by the work head being clamped on clamping device 401 by supporting surface 322.

In present embodiment, the first hole, location and the 3rd hole, location that support member is maintained at primary importance only have a pair, Therefore, the primary importance only one of which of support member, it may occur to persons skilled in the art that, two people also can be set to above first Hole, location and the 3rd hole, location, make support member have plural primary importance.

Foregoing description is as a example by support member 320 is switched to the motion of the second position from primary importance, and support member 320 is from second The operational approach that position is switched to primary importance is same, differs only in the relative linearly moving side of housing 2 of support member 320 To, do not repeat them here.

Fig. 6 shows the power tool 500 that second embodiment of the invention provides.

The power tool 500 of present embodiment is on the basis of the power tool 300 of the first embodiment, increases propping up The biasing device of support member 520 force, this biasing device is preferably elastic component 531, and elastic component 531 makes supporting surface 522 have along defeated The trend that the bearing of trend of the centrage X-X of rod moves towards the direction away from housing 2, take-off lever 6 is in output rotary motion The second motor pattern time, primary importance be support member 520 relative housing 2 motion predetermined stroke range in all positions, Support member 520 makes supporting surface 522 all the time against workpiece in primary importance.It may occur to persons skilled in the art that, except elastic component, The biasing device that can realize same purpose of other form also may be used.

This situation applies in general to connect on take-off lever the drill bit 7 that workpiece is punched by rotary motion, now, power Instrument 500 is used as to rotate class instrument, and during drill bit 7 creeps into workpiece, whole support member 520 gradually overcomes elastic component 531 to make Firmly make drill bit 7 can constantly towards workpiece feeding, but supporting surface 522 under the effect of elastic component 531 always with workpiece against, Thus, during drill bit 7 creeps into workpiece, supporting surface 522, always against workpiece and guide drill bit 7 towards workpiece feeding, makes Power tool 500 stable working state.

The present embodiment medium power instrument 500 is provided with identical position holding mechanism with the power tool 100 of embodiment one, Support member 520 is maintained on housing 2 by this position holding mechanism at predeterminated position, and the predeterminated position in the present embodiment refers to second Position, and one of them primary importance near the second position.

Fig. 7 to Fig. 9 shows the power tool 600 of third embodiment of the invention.

The power tool 600 of present embodiment has with the main distinction of the power tool 300 of the first embodiment: support member It is additionally provided with restriction support member between the concrete shape of 620 and the installation site on housing 2, support member 620 and housing 2 The 620 relative linear position-limit mechanisms of moving range of housing 2, the concrete structure of position holding mechanism.It is described the most one by one.

Referring to Fig. 7 and Fig. 8, the support member 620 of present embodiment only arranges a guide part 625, and guide part 625 is at shell Sliding to connect with housing 2 in body 2 makes support member 620 linearly move relative to housing 2, thus support member 320 is first shown in Fig. 7 Move between the second position shown in position and Fig. 8.Guide part 625 is arranged in housing 2, makes the outward appearance of power tool 600 Type impact is less, and the outward appearance that can make power tool 600 is more attractive.

Refer to Fig. 7 and Fig. 8, in present embodiment, between support member 620 and housing 2, be additionally provided with restriction support member 620 The position-limit mechanism of the linear moving range of housing 2 relatively, this position-limit mechanism makes support member 620 be maintained on housing 2 and support member 620 It is only capable of moving between the first position and the second position relative to housing 2.Concrete, position-limit mechanism includes being arranged on support member 620 On projection 672, be arranged on housing 2 and be available for the longitudinal trough 674 that described projection 672 slides wherein.Projection 672 is arranged on leads On the end away from supporting surface 622, the portion 625, as it is shown in fig. 7, projection 672 and longitudinal trough 674 are near the end of clamping device 401 When portion abuts, support member 620 is positioned at primary importance；As shown in Figure 8, projection 672 and longitudinal trough 674 are away from clamping device 401 During end abutment, support member 620 is positioned at the second position.It may occur to persons skilled in the art that, projection and longitudinal trough are respectively provided with In other position of support member and housing also can, or projection is arranged on housing, longitudinal trough is arranged on support member and also may be used Carrying out spacing to support member relative to the motion of housing, all employings technical scheme similar with present embodiment all should contain at this In bright protection domain.

Refer to Fig. 7 to Fig. 9, bias piece 628 that the position holding mechanism of present embodiment the most mutually abuts, middleware 631, locking piece 630, bias piece 628 abuts with housing 2, and support member 620 is provided with can be with connecting that described locking piece 630 connects Portion, bias piece 628 promotes middleware 631 to move in the first direction, and middleware 631 pushes away along the second direction vertical with first direction Dynamic locking piece 630 moves towards latched position.In present embodiment, first direction is the extension side of the centrage X-X of take-off lever 6 To, locking piece 630 then moves along the second direction being perpendicular to centrage thus moves between latched position and off-position.

Concrete, bias piece 628 is helical spring, and its one end is connected on housing 2, and the other end is connected to middleware 631 On, for convenience of the installation of spring, middleware 631 is convexly equipped with the protruded stigma 662 being available for helical spring socket.

Middleware 631 is provided with and pushes against in latched position that the lock face 664 of locking piece 630 is angled with lock face 664 to be set The receiving slit 668 that the inclined-plane 666 put is connected with inclined-plane 666, inclined-plane 666 movement progress locking piece 630 in the first direction, make lock Locking member 630 produces displacement in second direction thus moves towards latched position, and receiving slit 668 houses locking piece in off-position 630。

In present embodiment, locking piece 630 is steel ball.Mating part is the first hole 633, location being arranged on guide part 625 With the second hole 635, location, during as it is shown in fig. 7, steel ball snaps in the first hole 633, location, support member 620 is maintained at primary importance, as Shown in Fig. 9, when steel ball snaps in the second hole 635, location, support member 620 is maintained at the second position.

It is fixedly provided with spacer 670 on power tool 600, spacer 670 sets for leading to that steel ball passes in a second direction Hole, through hole provides for the steel ball locking piece 630 motion between latched position and off-position and guides.

In present embodiment, for convenience of operation, housing 2 is provided with stopper slot 653, middleware 631 protrudes from limit Position groove 653 stretches out the operating knob 647 of housing 2 outer surface, and operating knob 647 moves in the range of stopper slot 653, and operating knob 647 with an end abutment of stopper slot 653 time, middleware 631 drives steel ball to be positioned at latched position；Operating knob 647 is with spacing During another end abutment of groove 653, middleware 631 drives steel ball to be positioned at off-position.

The operational approach of the position holding mechanism of present embodiment is described below.

As it is shown in fig. 7, support member 620 is maintained at primary importance by position holding mechanism, concrete, on support member 620 Projection 672 and longitudinal trough 674 are near the end abutment of clamping device 401, and support member 620 is positioned at primary importance；Bias piece 628 pushes away Dynamic middleware 631 and first end abutment of stopper slot 653, it is fixed that steel ball is supported into first by the lock face 664 on middleware 631 In hole 633, position, support member 620 is maintained at primary importance.

When adjusting the position of the relative housing 2 of support member 620, operator passes through the operating knob 647 centrage X-along take-off lever 6 The bearing of trend of X overcomes the effect of bias piece 628 to promote middleware 631, makes another end of middleware 631 and stopper slot 653 Portion abuts, and in the process, the lock face 664 on middleware 631 disengages with steel ball, and steel ball through hole from spacer 670 is worn Crossing and slide along inclined-plane 666, eventually falling in receiving slit 668, steel ball and the first completely disengaged being in hole 633, location discharge position Putting, now, operator can move freely support member 620 makes support member 620 move the second position shown in Fig. 8, support member 620 On projection 672 and longitudinal trough 674 away from the end abutment of clamping device 401.

After support member 620 reaches the second position shown in Fig. 8, operator unclamps operating knob 647, the elastic force of bias piece 628 Middleware 631 is promoted to return to the position of first end abutment with stopper slot 653, in the process, oblique on middleware 631 Face 666 promotes steel ball to move along the direction of the centrage X-X that is perpendicular to take-off lever 6, steel ball through the through hole on spacer 670 with Second hole 635, location connects, and the lock face 664 on middleware 631 pushes against steel ball makes steel ball be maintained in the second hole, location 635, Support member 620 keep shown in Fig. 9 in the second position.

Foregoing description, supports by support member 620 as a example by primary importance position moves to the second position the process that locks Part 620 moves to primary importance from the second position and the operation that locks is same, differs only in the motion side of support member 620 To, do not repeat them here.

Figure 10 to Figure 13 shows the power tool 700 of four embodiment of the invention.

The power tool 700 of present embodiment specifically includes that support member with the difference of the power tool 300 of embodiment one With the relation of handle, the direction of motion of locking piece in position holding mechanism.Describe in detail the most one by one.

Incorporated by reference to Figure 10 and Figure 11, the power tool 700 of present embodiment also includes the hands being connected on housing 2 of activity Handle 707, it is preferred that handle 707 is directly flexibly connected with housing 2, support member 720 interlocks with handle 707, thus support member 720 Indirectly it is flexibly connected with housing 2.Thus, support member 720 primary importance as shown in Figure 10 and as shown in figure 11 second Between position motion time, the position of the relative housing 2 of handle 707 changes simultaneously, can when support member 720 is positioned at diverse location, There is provided more excellent gripping to experience for power tool 700, improve operation comfort.

Present embodiment is preferred, and handle 707 is wholely set with support member 720, it is possible to reduce amount of parts, convenient dynamic The installation of power instrument 700.

Refer to Figure 10, in present embodiment, motor M is arranged in housing 2, is provided with and switchs 3 and be connected in handle 707 Panel 766, for guarantee handle 707 after housing 2 moves, the panel 766 in handle 707 is protected with the motor M in housing 2 Hold connection, panel 766 and motor M to be electrically connected by wire 768.For making wire 768 connect panel 766 and motor smoothly Being provided with through hole 770 in the region that M, housing 2 and handle 707 are mutually butted, wire 768 is through through hole 770 and motor M and control Plate 766 connects.

In present embodiment, the motor M in housing 2 and the panel in handle 707 766 are connected by wire 768, structure Simply, low cost.It may occur to persons skilled in the art that, track and the contact of conduction is set between housing 2 and handle 707, When support member 720 band fixed handle 707 moves to precalculated position, contact makes electrical contact with the ad-hoc location of track, thus ensures housing 2 In motor M and panel 766 in handle 707 electrically connect and also may be used.

Referring to Figure 12 and Figure 13, in present embodiment, support member 720 slides thus at first at housing 2 outer surface Putting and move between the second position, power tool 700 also includes being maintained at relative for support member 720 housing 2 primary importance and the Position holding mechanism between two positions.

Position holding mechanism includes bias piece 728 and the locking piece 730 mutually abutted, and bias piece 728 supports with support member 720 Connecing, housing 2 is provided with the mating part that can connect with locking piece 730, and locking piece 730 can be transported between latched position and off-position Dynamic, as shown in figure 12, in latched position, locking piece 730 connects with mating part under the effect of bias piece 728, and support member 720 is protected Hold in primary importance or the second position；As shown in figure 13, in off-position, locking piece 730 overcome the effect of bias piece 728 with Mating part disengages, and support member 720 can housing 2 activity relatively.

Concrete, support member 720 slides at housing 2 outer surface, and the part that housing 2 connects with support member 720 is provided with Transverse holes 772, locking piece 730 includes that main body 742, main body 742 are located in transverse holes 772, and its one end is supported with bias piece 728 Connecing, the other end protrudes from housing 2 and support member 720 external operates button 747, and locking piece 730 is in the substantially centre of its main body 742 Position protrudes sticking department 738.

Mating part is the hole, location being available for sticking department 738 partial insertion.Concrete, along the centrage of take-off lever on housing 2 Keeping at a certain distance away on the bearing of trend of X-X and be provided with the first hole, location 733 and the second hole 735, location, sticking department 738 inserts the During one hole 733, location, support member 720 is maintained at primary importance；When sticking department 738 inserts the second hole 735, location, support member 720 It is maintained at the second position.In present embodiment, sticking department 738 is contained in housing 2, accordingly, and the first hole 733 and second, location Hole 735, location is arranged on housing 2 inner surface, it may occur to persons skilled in the art that, also may be used by some simple evolutions Making sticking department connect with hole, location, all employings technical scheme similar with present embodiment all should contain the protection model in the present invention In enclosing.

In present embodiment, the main body 742 of locking piece 730 is in strip, and locking piece 730 is along its main body 742 bearing of trend line Property move thus between latched position and off-position move.Preferably, locking piece 730 is along being perpendicular to take-off lever centrage X- The direction of X is moved thus is moved between latched position and off-position.

The operational approach of position holding mechanism is described below.

Continuing with seeing Figure 12 and Figure 13, when locking piece 730 is positioned at the latched position shown in Figure 12, bias piece 728 is pressed Contracting promotes sticking department 738 to insert the first hole, location 733 or the second hole 735, location, and the relative housing 2 of support member 720 is maintained at the One position or the second position.

Continuing with seeing Figure 12 and Figure 13, during unblock, operator overcomes the active force of bias piece 728 to promote along unlocking direction Operating knob 747 is linearly mobile makes sticking department 738 disengage with the first hole, location 733 or the second hole 735, location, arrives such as Figure 13 institute The unlocked position shown, support member 720 can slide by housing 2 relatively, thus support member 720 can linearly move relative to housing 2 and make support Face 722 changes position.

Figure 14 to Figure 17 shows the power tool 800 of fifth embodiment of the invention.

The power tool 800 of present embodiment includes with the main distinction of the power tool 300 of embodiment one: support member The mode being flexibly connected with housing, the concrete structure of position holding mechanism, describe in detail the most one by one.

Referring to Figure 14 and Figure 15, in present embodiment, support member 820 linearly moves while housing 2 rotates, from And move in the primary importance shown in Figure 14 with between the second position shown in Figure 15.

Concrete, housing 2 is provided with the spiral prominence race 876 of the direction extension of the centrage X-X along take-off lever 6, props up Being provided with the projectile 878 connected with cam path 876 in support member 820, projectile 878 and cam path 876 connect and make support member 820 Linearly move while housing 2 rotates.Preferably, support member 820 linearly moving direction while housing 2 rotates Bearing of trend for the centrage X-X of take-off lever 6.

In present embodiment, spiral prominence race 876 is arranged on housing 2, projectile 878 is arranged on support member 820, can To reduce the volume of support member 820, it may occur to persons skilled in the art that, spiral prominence race is arranged on support member, advances Part is arranged on housing and also can realize same function.In present embodiment, support member 820 is line while housing 2 rotates The bearing of trend of the centrage X-X that direction is take-off lever 6 that property moves, makes power tool 800 compact conformation, people in the art Member it is contemplated that support member 820 linearly moving direction relative to housing 2 rotates while also can be other direction, all employings and The technical scheme that present embodiment is similar all should contain within the scope of the present invention.

In present embodiment, support member 820 includes the first service portion 880 and the second service portion 882, and projectile 878 is arranged First service portion 880 makes the first service portion 880 linearly can move while housing 2 rotates, the second service portion 882 with First service portion 880 is pivotally connected by pivot 892, and the axis of pivot 892 is perpendicular to the centrage X-X of take-off lever 6, supporting surface 822 are arranged on the second service portion 882.

Second service portion 882 includes first bar the 884, second bar 886 of being sequentially connected with and the 3rd bar the 888, first bar 884 Bearing of trend is parallel with the centrage X-X direction of take-off lever 6, and the second bar 886 is perpendicular to the first bar 884, the 3rd bar 888 and second Bar 886 becomes obtuse angle to arrange, and the first bar 884 is connected by pivot 892 with the first service portion 880, and supporting surface 822 is arranged on the second bar On 886, the 3rd bar 888 is used as extension when support member 820 is positioned at the primary importance shown in Figure 14, shape relative with handle 807 Become gripping space 860.In present embodiment, first bar the 884, second bar the 886, the 3rd bar 888 is fixing to be connected, and the second bar 886 Being perpendicular to the first bar 884, it may occur to persons skilled in the art that, the second bar 886 becomes other angle fixing even with the first bar 884 Connect, or the second bar 886 is pivotally connected with the first bar 884, so that the one-tenth that supporting surface 822 is relative to the centrage X-X of take-off lever 6 Certain angle also can be against workpiece.

The position holding mechanism of present embodiment includes in primary importance, support member 820 is maintained at first on housing 2 Holding means, support member 820 is maintained at the second holding means on housing 2, the first holding means and second in the second position The structure of holding means is different.

Concrete, referring to Figure 14, the first holding means includes the spring bearer plate 890 being arranged on handle 807, pressing plate 890 compress support members 820 makes the relative housing of support member 820 2 fixing, concrete, spring bearer plate 890 compress the 3rd bar 888 away from The end of the second bar 886, is maintained at support member 820 on handle 807, and handle 807 and housing 2 are fixed, then support member 820 phase Housing 2 is fixed.Simple in construction.

Referring to Figure 16 and Figure 17, the second holding means includes the elastic bumps 894 being arranged on housing 2, is arranged on and props up Pit 896 in support member 820, elastic bumps 894 snaps in pit 896, and the relative housing 2 of support member 820 is maintained at the second position.Knot Closing Figure 15, in present embodiment, pit 896 is arranged on the approximate mid-section position of the 3rd bar 888 of support member 820, this area skill Art personnel are it is contemplated that also may be used in other position that pit 896 is arranged on support member 820.In present embodiment, elastic bumps 894 Being arranged on housing 2, pit 896 is arranged on support member 820, it may occur to persons skilled in the art that, also can be by elastic bumps It is arranged on support member, and pit is arranged on housing.In present embodiment, the number of elastic bumps 894 and pit 896 is each Being two, the centrage of two relative take-off levers of pit 896 is symmetrical arranged, and it may occur to persons skilled in the art that, arranges other The elastic bumps matched of number and pit also may be used.All of these, repeat no more, the skill that all employings are similar with present embodiment Art scheme all should contain within the scope of the present invention.

The operational approach of the power tool 800 of present embodiment is described below.

As shown in figure 14, the support member 820 of power tool 800 is positioned at primary importance, and the second bar 886 is perpendicular to take-off lever 6 Centrage X-X, supporting surface 822 is positioned at working region and is perpendicular to the centrage X-X of take-off lever 6, and the 3rd bar 888 is away from second The end of bar 886 is compressed by spring bearer plate 890, and support member 820 is maintained at primary importance.

When changing the position of support member 820, the elasticity of spring bearer plate 890 is overcome to make the 3rd bar 888 take off with spring bearer plate 890 From, rotate the second service portion 882 around the direction of the centrage X-X of take-off lever 6, owing to the second service portion 882 is around the first service portion 880 pivots 892 rotated are perpendicular to centrage X-X, and the centrage X-X direction thus around take-off lever 6 rotates the second service portion 882 Time, the second service portion 882 and the first service portion 880 are without relative motion, thus the second service portion 882 is around the centrage of take-off lever 6 X-X rotates driving the first service portion 880 centrage X-X around take-off lever 6 to rotate, and when the first service portion 880 rotates, is arranged on Move in the projectile 878 on first service portion 880 spiral prominence race 876 on housing 2, the whole relative shell of support member 820 Body 2 linearly moves while rotating, and progressivelyes reach the second position shown in Figure 15.In the process, supporting surface 822 exports relatively The centrage X-X of bar 6 linearly moves while rotating, but is perpendicular to the centrage X-X of take-off lever 6 all the time.

Owing to the 3rd bar 888 becomes obtuse angle to arrange with the second bar 886, when the second position shown in Figure 15, the 3rd bar 888 sticks up Rising away from housing 2, the space making whole power tool 800 take is relatively big, is unfavorable for the use of power tool 800, now, can make Second service portion 882 pivots around relative first service portion 880 of pivot 892, progressivelyes reach another second position shown in Figure 16, this Time, the 3rd bar 888 is maintained on housing 2 near housing 2 and the cooperation by elastic bumps 894 and pit 896, can reduce whole The space that individual power tool 800 takies.

Foregoing description by support member 820 from primary importance move to the second position state change as a example by, support member 820 from The second position moves to the state of primary importance and changes in contrast, repeats no more.

Figure 18 to Figure 22 shows the power tool 900 of sixth embodiment of the invention

The power tool 900 of present embodiment includes with the main distinction of the power tool 300 of embodiment one: support member The mode being flexibly connected with housing, the concrete structure of support member, the concrete structure of position holding mechanism, retouch the most in detail State.

In conjunction with Figure 18 to Figure 21, in present embodiment, support member 920 rotates relative to housing 2 thus shown in Figure 18 Move between the second position shown in one position and Figure 21.

Preferably, relative housing 2 universal rotational of support member 920.Concrete, housing 2 is provided with switching part 998, support member 920 rotate relative to switching part 998 around first axle 999 and to make support member 920 rotate relative to housing 2 around first axle 999, the first axle Line 999 is perpendicular to the centrage X-X of take-off lever 6.Switching part 998 rotates relative to housing 2 around the second axis 997, the second axis 997 It is perpendicular to first axle 999, and the second axis 997 and first axle 999 intersect.

In present embodiment, handle 907 is wholely set with housing 2, and switching part 998 is arranged on handle 907 away from housing 2 One end, switching part 998 opposite handle 907 rotates around the second axis 997, then the relative housing 2 of switching part 998 is around the second axis 997 Rotate.

Seeing Figure 18 and Figure 21, support member 920 also includes the first sidepiece 950 and second being arranged on supporting surface 922 both sides Sidepiece 952, forms receiving space between first sidepiece the 950, second sidepiece 952 and supporting surface 922, support member 920 is shown in Figure 18 Primary importance time, the end of take-off lever 6 is positioned at described receiving space；Power tool 900 also include being plugged on handle 907 away from Battery bag 995 on one end of housing 2, support member 920 is when the second position shown in Figure 21, and battery bag 955 is positioned at described receipts Hold space.Thus, when support member 920 is positioned at primary importance, the clamping device 401 being arranged on take-off lever 6 end can be housed Within it, protect clamping device 401, and when support member 920 is positioned at the second position, the first sidepiece 950 and the second sidepiece 952 clamping On battery bag 995, topology layout is reasonable, handsome in appearance.In present embodiment, the first sidepiece 950 and the second sidepiece 952 shape The centrage X-X of identical and relative take-off lever 6 is symmetrical arranged, and has opening, structure on the first sidepiece 950 and the second sidepiece 952 The most attractive in appearance.

Extension 956, the bearing of trend of extension 956 and supporting surface it is provided with between supporting surface 922 and switching part 998 922 one-tenth obtuse angles are arranged, and support member 920 is when primary importance, and extension 956 is relative with handle 907 with part supporting surface 922 to be formed Gripping space 960.

Referring to Figure 18, Figure 19, Figure 21 and Figure 22, the position holding mechanism of present embodiment includes being arranged on support member A pair pit 996 on 920, the two pairs of elastic bumps 994 being separately positioned on housing 2 and handle 907 one end away from each other, Support member 920 is when the primary importance shown in Figure 18, and pit 996 and housing 2 are away from the elastic bumps 994 on handle 907 one end Clamping, support member 920 is maintained at primary importance, support member 920 when the second position shown in Figure 21, pit 996 and handle 907 Away from elastic bumps 994 clamping on one end of housing 2, support member 920 is maintained at the second position.In present embodiment, a pair Pit 996 is arranged on support member 920, and projection is separately positioned on housing 2 and handle 907 by two, and those skilled in the art can To expect, a pair elastic bumps also can be set on support member 920, and be respectively provided with on housing 2 and handle 907 can be with elasticity The pit of male cooperation；In present embodiment, the number of the pit 996 on support member 920 is a pair, is separately positioned on the first side In portion 950 and the second sidepiece 952, the centrage X-X of relative take-off lever 6 is symmetrical arranged, and it may occur to persons skilled in the art that, if Put the pit of other number and elastic bumps also can, all employings technical scheme similar with present embodiment all should contain at this In bright protection domain.

The operational approach of power tool 900 is described below.

As shown in figure 18, now, the support member 920 of power tool 900 is positioned at primary importance, and supporting surface 922 is positioned at work Can be against workpiece in region, the pit 996 on support member 920 is connected to the housing 2 elastic bumps 994 away from handle 907 one end On, support member 920 is maintained at primary importance.

During conversion support member 920 position, overcome the frictional force between pit 996 and elastic bumps 994, make support member 920 Rotate relative to switching part 998 around first axle 999, gradually forward the centre position shown in Figure 19, now, the first sidepiece 950 He to Second sidepiece 952 staggers with take-off lever 6, makes support member 920 drive switching part 998 together around the second relative shell of axis 997 subsequently Body 2 rotates, arrive another centre position shown in Figure 20, now, the relative extension 956 of supporting surface 922 away from take-off lever 6, then Make support member 920 rotate relative to housing 2 around first axle 999, arrive the second position shown in Figure 21, the first sidepiece 950 and the Two sidepieces 952 are connected on battery bag 995, and meanwhile, the pit 996 on support member 920 is connected to handle 907 away from housing 2 one On the elastic bumps 994 of end, support member 920 is maintained at the second position.

Foregoing description by support member 920 from primary importance move to the second position state change as a example by, support member 920 from The second position moves to the state of primary importance and changes in contrast, repeats no more.

It may occur to persons skilled in the art that, the present invention can also have other implementation, but as long as it uses Technical spirit and the present invention same or like seemingly, or any variations and alternatives made based on the present invention are all the present invention's Within protection domain.

Claims (31)

1. a power tool, the motor including housing, being contained in described housing, is driven by drive mechanism by described motor Take-off lever, described drive mechanism includes motion changing mechanism, the described take-off lever of the exercisable driving of described motion changing mechanism Being in the first motor pattern and second motor pattern of output rotary motion of output reciprocating motion, described take-off lever lengthwise extends And there is centrage, it is characterised in that: described power tool also includes the support member with supporting surface, the activity of described support member Connect on the housing and can move between the first position and the second position, in described primary importance, described supporting surface and Workpiece against, in the described second position, described supporting surface not with workpiece against.

2. power tool as claimed in claim 1, it is characterised in that: when described take-off lever is in described first motor pattern, Described support member is positioned at described primary importance.

3. power tool as claimed in claim 1, it is characterised in that: described take-off lever be in described second motor pattern and When described power tool reaches particular process state, described support member is positioned at described primary importance.

4. power tool as claimed in claim 1, it is characterised in that: when described take-off lever is in described second motor pattern, Described support member is positioned at the described second position.

5. power tool as claimed in claim 1, it is characterised in that: described power tool also includes exerting a force described support member Biasing device, described biasing device makes described supporting surface have the bearing of trend along described centrage towards away from described housing The trend of direction motion, when described take-off lever is in described second motor pattern, described primary importance is that described support member is relative All positions in the predetermined stroke range of described housing motion.

6. power tool as claimed in claim 1, it is characterised in that: described support member linearly moves relative to described housing.

7. power tool as claimed in claim 6, it is characterised in that: described linearly moving direction is prolonging of described centrage Stretch direction.

8. power tool as claimed in claim 6, it is characterised in that: described power tool also include activity be connected to described Handle on housing, described handle interlocks with described support member.

9. power tool as claimed in claim 8, it is characterised in that: described handle is wholely set with described support member.

10. power tool as claimed in claim 1, it is characterised in that: the most described housing into rotation of described support member.

11. power tools as claimed in claim 10, it is characterised in that: described housing is provided with switching part, described support member Rotating relative to described switching part around first axle, described first axle is perpendicular to described centrage.

12. power tools as claimed in claim 11, it is characterised in that: described switching part is around the second the most described housing of axis Rotating, described second axis is perpendicular to described first axle.

13. power tools as claimed in claim 12, it is characterised in that: described second axis intersects with described first axle.

14. power tools as claimed in claim 1, it is characterised in that: while the most described housing into rotation of described support member Linear mobile.

15. power tools as claimed in claim 14, it is characterised in that: set in described support member and described housing It is equipped with on another along spiral prominence race, described support member and the described housing of the direction extension of described centrage and is provided with The projectile connected with described cam path.

16. power tools as claimed in claim 14, it is characterised in that: described linearly moving direction is described centrage Bearing of trend.

17. power tools as claimed in claim 1, it is characterised in that: described support member when described primary importance, described Support face is perpendicular to described centrage.

18. power tools as claimed in claim 1, it is characterised in that: it is movable with described housing that described power tool also includes The handle connected, described support member interlocks with described handle.

19. power tools as claimed in claim 1, it is characterised in that: it is provided with position between described support member and described housing Putting maintaining body, the most described for described support member housing is maintained at predeterminated position by described position holding mechanism.

20. power tools as claimed in claim 19, it is characterised in that: described position holding mechanism includes being arranged on described The locking piece on one in support member and described housing, be arranged in described support member and described housing another on connect Portion, described locking piece can move between latched position and off-position, in latched position, described locking piece and described mating part Connecting, described support member is maintained at described predeterminated position；In off-position, described locking piece disengages with described mating part, described Support member can housing activity relatively.

21. power tools as claimed in claim 20, it is characterised in that: described position holding mechanism also includes and described locking The bias piece that part compresses, described locking piece force is made described locking piece have and becoming that described mating part connects by described bias piece Gesture.

22. power tools as claimed in claim 21, it is characterised in that: in being provided with between described bias piece and described locking piece Between part, described bias piece promotes described middleware to move in the first direction, and described middleware is along vertical with first direction second Direction promotes described locking piece to move towards described latched position.

23. power tools as claimed in claim 22, it is characterised in that: described first direction is the extension side of described centrage To.

24. power tools as claimed in claim 22, it is characterised in that: described middleware is provided with and supports in described latched position The lock face of tight described locking piece is at an angle of the receiving slit that the inclined-plane of setting is connected with described inclined-plane with described lock face, described Inclined-plane produces displacement thus towards described locking bit along locking piece described in described first direction movement progress in described second direction Putting motion, described receiving slit houses described locking piece in described off-position.

25. power tools as claimed in claim 24, it is characterised in that: described locking piece is steel ball.

26. power tools as claimed in claim 25, it is characterised in that: it is installed with spacer on described power tool, described The through hole passed for described steel ball it is located at along described second direction on spacer.

27. power tools as claimed in claim 20, it is characterised in that: described locking piece includes the most described centrage center Symmetrically arranged first sticking department and the second sticking department, described first sticking department and described second sticking department act on jointly by described Support member is maintained at described predeterminated position.

28. power tools as claimed in claim 20, it is characterised in that: described locking piece rotates around described centrage.

29. power tools as claimed in claim 20, it is characterised in that: described locking piece is along the side being perpendicular to described centrage To movement.

30. power tools as claimed in claim 1, it is characterised in that: described support member also includes being arranged on described supporting surface First sidepiece of both sides and the second sidepiece, form receiving space between described first sidepiece, the second sidepiece and described supporting surface, described Support member end of described take-off lever when described primary importance is positioned at described receiving space；Described power tool also includes grafting Battery bag on the housing, described support member is when the described second position, and described battery bag is positioned at described receiving space.

31. power tools as claimed in claim 1, it is characterised in that: described power tool also includes being connected with described housing Handle, described support member also includes the extension being connected with described supporting surface, described support member when described primary importance, institute State that extension is relative with described handle forms gripping space.